TXUD2000/ATSC UHF TV Transmitter CODE TXUD2000/ATSC TITLE TXUD2000/ATSC UHF TV TRANSMITTER REV 0 DATE 11/02/09
Registration number: IT-17686 Registration number: IT-24436 SS 96 Km 113 70027 Palo del Colle (Ba) ITALY Tel. +39 (0)80 626755 Fax +39 (0)80 629262 E-mail: elettronika@elettronika.it Web site: http://www.elettronika.
WARNING The apparatus described in this manual has been designed and manufactured with devices to safeguard the users. In any case it is recommended that during any operation of installation, maintenance, miscellaneous interventions and calibrations requiring the apparatus to be switched on, THE USER TAKES ALL THE PRECAUTIONS AGAINST INCIDENTS It is required to use the proper clothes and protection gloves in order to prevent damages from incidental contacts with high-voltage parts.
Warranty Summary of warranty We, ELETTRONIKA S.r.l., SS096 Km 113 Z.I. PALO DEL COLLE (BA) ITALY, warrant to the ORIGINAL PURCHASER of a NEW product, for a period of one (1) year from the date of purchase by the original purchaser (the “warranty period”) that the new ELETTRONIKA product is free of defects in materials and workmanship and will meet or exceed all advertised specifications for such a product.
INTRODUCTION The apparatus described in this manual is the latest of this series, offering high performances, remarkable reliability and a wide range of characteristics, it all at a competitive cost. Its is easy to install and use. It only takes to follow the installation procedure as shown in this manual: after having removed all from the package, you only have to follow step by step the description in the various sections.
WARNING! The currents and voltages in this equipment are dangerous! Personnel must at all times observe safety regulation! This manual is intended as a general guide for trained and qualified personnel who are aware of the dangers inherent in handling potentially hazaedous electrical and electronic circuits. It is not intended to contain a complete statement of all safety precautions which should be observed by personnel in using this or other electronic equipment.
Treatment of electrical shock 1) If victim is not responsive follow the A, B, C’s of basic life support. PLACE VICTIM FLAT ON HIS BACK ON A HARD SURFACE A - AIRWAY B - BREATHING If unconscious, open airway lift up neck, push forehead back, clear out mouth if necessary, observe for breathing. If not breathing, begin artificial breathing. Tilt head, pinch nostrils, make airttght seal, 4 quick full breaths. Remember mouth to mouth resuscitation must be commenced as soon as possible.
2) If victim is responsive: - keep them warm; - keep them as quiet as possible; - loosen their clothing (a reclining position is recommended). FIRST-AID Personnel engaged in the installation, operation, maintenance or servicing of this equipment are urged to become familiar with first-aid theory and practices. The following information is not intended to be a complete first-aid procedure, it is brief and is only to be used as a reference.
Communication N°1 -2002/95/CE - RoHS Directive Further to the directives issued by the European Community, 2002/95/CE, 2002/95/CE and 2003/108/ CE, and to the Italian Decree of Law n° 151 dated 25 July 2005, this is to inform the customers of Elettronika S.r.l.
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TXUD2000/ATSC UHF TV TRANSMITTER User’s manual 11
TXUD2000/ATSC UHF TV TRANSMITTER DESCRIPTION The TXUD2000/ATSC belongs to the High Power UHF products family of Television Transmitters fully in LDMOS solid state technology. The TXUD2000/ATSC series represents the 2kW ATSC TV transmitter operating in the UHF Band for Common amplification process (separate amplification available) of the Video and Audio carriers and for Digital TV signals of different standards.
TECHNICAL CHARACTERISTICS RF SECTION Analog Operation Frequency Range ............................................................................................................................................. 470 - 860MHz Output Power .......................................................................................................................................................... 5kW PEP Gain (±2) .....................................................................................................
AUDIO SECTION Nominal Input Level (±50kHz dev.) ................................................................................................................... -10 to +8dBm Input Impedance ............................................................................................................................................ 600Ω balanced Pre-emphasis .......................................................................................................................................................
GENERAL Power Supply Voltage ................................................................................................... 3P+N 380V ±15%, 3P+N 230V ±15% Power Supply Frequency ........................................................................................................................................ 50 - 60Hz Power Factor ................................................................................................................................................................. > 0.
INSTALLATION REQUIREMENTS This section explain how to install and configure the transmitter for your location All internal switching and setup should be done by qualified service person. PARAMETER REQUIREMENTS TRANSMITTER ROOM The room should be clean and free of dust. The building floor shuold be able to support a load capacity >1000kg/m2 INSTALLATION AREA The transmitter should be installed to have space around enough for ventilation and for maintenance actions to be allowed.
SWITCH ON PROCEDURE Before to switch on the Transmitter is extremely important to check: - The right connections for the RF system (antenna or external combiner) and take greatest care for the Inner in each coaxial connections; - the right connections with the Mains Power Supply network, the Neutral line must be present and connected, and the correspondence with the voltage nominal value request; - the right working of the earth-ground connections system, for people safety and transmitter right operation; -
RF AMPLIFIER MODULE DESCRIPTION The RF Amplifier Modules place in the TXUD2000ATSC Transmitter station are equipment designed to simplify transport and installation. Born to ensure high working reliability they excel also for their great performance. Thanks to the excellent linearity of the amplifiers, achieved with the use of the state-of-the-art LDMOS (UHF) technology, these equipment allow excellent performance both with analog and digital TV signals.
- replace the analogue Cxciter with a DVB-T ones. If you use a DVB-T Modulator with IF output you can use the IF VEGA input; - the output power should be around 1/4 (in DVB-T mode) or 1/3 (in ATSC mode) of the analogue rated power (for example: the 5kW = 1.2kW rms in DVB-T mode or 5kW = 2.0kW rms in ATSC mode).
Component list APT200B/ATSC Elettronika Code Description Qty 01404 02015 02408 02459 02502 02526 02527 02791 02844 02865 02871 02886 02893 02894 03205 05447 05448 06648A 06655A 06870 07528A 07549 07550A 07553 07558B 07574 07620 07625 07625A 07810 07970 08504 A9029 APG012C APG050F APT144CM C0205 C0798 CMS6006 CMS6009 CSS5011 DET1069 DET1126 DET1183 DET1184 BYPASSING CAPACITOR BNC CONNECTOR FOR RG58 CABLE 90° 7/16” MALE-90° 7/16” FEMALE CONNECTOR EIA 1+5/8” INNER CONNECTOR SMA SOCKET FOR RG58 CABLE EIA
DET1201 DET1204 DET1205 DET1283 DET1287R2P DET1288 DET1294 DET1334R0P DET1336R0P DET1343R2P DET1350R0P DET1351R0P DET1362R2Z DET1367R0P DET1416R0P DET1528R0P DET1529R0P DET1646R0P FUS04 MTG0143AR0 MTG0149AR0 PAN0080 PAN0082 SCH0268AR0 R0032 RAK0006U42 V0769 V0929 V0973 V0974 V0975 V0976 V0989 DET1201R1 ANGOLAR SUPPORT BOX 8 DET1204R0 GUIDE SUPPORT 2 DET1205R0 GUIDE SUPPORT AMPLIFIER CONTROL 2 DET1283R0 BAR SUPPORT BANDPASS FILTER 2 DET1287R2 DISTRIBUTOR NETWORK COVERAGE 1 DET1288R0 SPECIAL SPREADING GUIDE
1 = CONTROL 2=N 3=T 4=S APG050F POWER CONTROL 5=R FANS POWER 1 APG012C AMPLIFIER CONTROL MAINS INPUT 2 x AXIAL FANS EBM A2E 250-AM06-13 DRIVER POWER MAINS INPUT APD043A EXCITER MAINS INPUT EXCITER (Optional) MAIN AUX ATS (Optional) MAINS INPUT MULTIPLE SOCKET =G 1 2-5 = L 4 2 5 1 = NC 3 4-3 = L APT144CM AUTV/1500LD =G 1 2-5 = L 4 2 5 1 = NC 3 GROUND BAR 4-3 = L APT144CM AUTV/1500LD =G 1 2-5 = L 4 2 5 1 = NC 3 4-3 = L APT144CM AUTV/1500LD =G 1 2-5 = L 4 2 5
470-860MHz 4 WAY HYBRID SPLITTER RF OUT L1 RF OUT RF IN RF OUT RF OUT A1 A2 A3 L3 L2 A4 L1 L3 L2 RF INPUT CONNECTIONS RF OUTPUT CONNECTIONS DUMMY LOAD CONNECTIONS INTERCONNECTIONS CABLE 23
A1 A2 A3 A4 RF MONITOR CONNECTION RS485 AMPLIFIER CONNECTIONS FWD AND REF CONNECTIONS 24
AGC CONNECTION REMOTE CONTROL CONNECTIONS 25
2 1 UNBALANCE CONNECTION 24V FAN CONNECTION 26
Component list APG050 Elettronika Code Description Qty 00173 02881 02882A 02897 02898 03060 07528H 07541 07543 07561B 07638 07639 CON0311 CON0312 DET0773 FUS00012 FUS2A PAN0155R2P PN1286A V0977 V0978 V0979 Z0021 68kΩ 1/2W RESISTOR 4 POLES MALE CONNECTOR 4 POLES 90° FEMALE CONNECTOR 2 WAY MALE CONNECTOR 2 WAY 90° FEMALE CONNECTOR 5mm GREEN LED 1 POLE 20A 250V MAGNETO-THERMIC SWITCH 10A FUSE-HOLDER PANEL MOUNTING FUSE-HOLDER PCB MOUNTING 110V RELE SWITCH EMERGENCY BUTTON CON0311R0 COVER CON0312R0 MULTIS
MAIN CONTROL BOARD SCH0398AR0 SCH0398AR0 Component layout SCH0398AR0 COMPONENT LIST Part Name/Number Description Qty. Comps. DL LEDG5 03060 FUSE 2A-PCB 7543 J CON KBW02_2P_M_90° J CON KBW04_4P_M_90° R 100R-1/2W 00139 RL FINDER40.
FAN CABLE BOARD SCH0268AR0 SCH0268AR0 Component layout SCH0268AR0 COMPONENT LIST Part Name/Number Description Qty. Comps. J CON HD515V/05-3PVE J TESTP1.
0.7+0.7+1.4kW UHF DUMMY LOAD MTG0143AR0 DESCRIPTION The MTG0143A module is a load including three unbalancing loads. Two of them can dissipate 700W CW, the other up to 1400W CW. The input connector of each load is 7/16” Female. Inside the loads, Florida RF-Labs resistors are used. The measured Return Loss is higher than 22dB in the band from 450 to 870MHz. Besides there is an input (BNC Female connector) for each load allowing to monitor the unbalancing power level on the load.
FRONT PANEL 1 1. Grid REAR PANEL 1 1. L-1 RF Input Connector 2. Test Point 3. L-3 RF Input Connector 4. Unbalance Connector 36 2 3 5. L-2 RF Input Connector 6. Test Point 7. 24V Fan Connector 8.
Component list MTG0143A Elettronika Code Description Qty 00028A 00441 00664 01041 01041D 01400 02010 02018 02402 02843 02518 03207 05552B 07586 07596 08500 09419 CON0009 CON0290 CON0348R1P CON0349R1P DET1054I DET1185 DET1253 DET1254 DET1255 DET1256 DET1257 DET1318R0P PAN0156R1P PN1269AR3F PN1271A PN1273A R0012 SCH0404AR1 82Ω 1206 SMD RESISTOR 350W 50Ω HIGH POWER TERMINATIONS LM35DT THERMAL SENSOR 1nF 50V CERAMIC CAPACITOR 1nF 1206 SMD CAPACITOR BYPASSING CAPACITOR BNC FEMALE CONNECTOR UG909 CONNECTOR
DUMMY LOAD TEMPERATURE CONTROL BOARD SCH0404AR1 SCH0404AR1 Component layout SCH0404AR1 COMPONENT LIST Part Name/Number Description Qty. Comps. CC 100nF-S 01065E CC 10nF-S 01053A CE 100uF50V-S 01795A IC LM358M-S 04660 IC LM393-S 04639 J CON KBW02_2P_M_90° J CON KBW04_4P_M_90° J SMB-PCB 02516 J TESTPOINT-P R 10K-S 00053C R 12K-S 00054C R 15K-S 00055C R 1K0-S 00041C R 1K8-SS R 1M-SS R 220R-SS R 2K0-SS R 47K-S 00061C R 4K7-S 00049C R 5K6-S 00050C RL 40.31.
UHF DTV BANDPASS FILTER 06655A TECHNICAL DATA Frequency Range Configuration Bandwidth Max Output Power Insertion Loss f(0) Attenuation f(0) ±3.8MHz Attenuation f(0) ±4.2MHz Attenuation f(0) ±6MHz Attenuation f(0) ±8MHz 470 - 862MHz 6 Cavities elliptical 6 to 8MHz 2.5kW (rms) < 0.3dB < 0.8dB (SWR 1.22), < 1dB (SWR 1.18) > 5dB (SWR 1.22), > 6dB (SWR 1.18) > 30dB (SWR 1.22), > 35dB (SWR 1.18) > 45dB (SWR 1.22), > 50dB (SWR 1.
Rotate the coupling (4) (fig. 1) until the notch attenuations appear and are positioned at about ±6MHz from the centre of the channel. Alternately proceed with all adjustments, taking into consideration that each time the IN/OUT couplings (3), the nearer tuning to the relevant coupling and the relevant interstage coupling must be shifted.
ACCESSORIES AMPLIFIER CONTROL User’s manual 43
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Section 1 - Information Contents: 1.1 Description 1.
AMPLIFIER CONTROL 1.1 DESCRIPTION The Amplifier Control (AC) module is the equipment that allows to monitor and manage from a single location a modular transmitter, composed by several combined amplifier modules (AM). The AC continuously monitors the status of the AMs and highlights any anomaly, it monitors the powers in antenna (forward and reflected) and the unbalancing, if any, showing all of the parameters on the display and through the status LEDs.
1.
Front panel 48 3 1 RS232 AMPLIFIER CONTROL 2 MICROPROCESSOR CONTROLLED SYSTEM 4 5 POWER 7 6 DESCRIPTION 1 Status LEDs 2 Alarm LEDs 3 RS232 Socket 4 LCD Display 5 Function Keys 6 RF Monitor Connector 7 Main Switch
DESCRIPTION E 16 1 RF Monitor Input Connector 2 Main Power Supply Socket with Fuse (10A) 3 Driver1 Power Supply Socket 4 Driver2 Power Supply Socket 5 Fans Power Supply Socket 6 1A Fuse (+24Vdc) 7 Fuse (Fans: the value may change) 8 Fuse (Fans: the value may change)* 9 +24Vdc Connector C 2 1 B 12 10 FANS CONTROL D AGC RS485 AMPL 13 F G H RS485 REMOTE INTERLOCK 14 TELEMEASURES 11 15 Rear panel 2 A 1 9 24Vdc 10 AGC Socket 11 Telemeasure Socket A FUSE FANS1 POWER
Front and rear panel connectors RS232 (on front panel) Pin 2: Pin 3: RS232 TX RS232 RX Pin 5: Remote RS485 for RCU connection (on rear panel) GND Pin 2: Pin 3: Pin 5: AGC (on rear panel) Pin 1: Pin 2: Pin 3: Pin 8: Pin 9: GND AGC Alarm TTL Output GND=AGC Alarm +5V=no AGC Alarm AGC Alarm TTL Output GND=AGC Alarm +5V=no AGC Alarm Forward Power Analog Output (0V - 5V) Forward Power Analog Output (0V - 5V) Pin 7: Pin 8: RS485 TXRS485 TX+ Pin 2: Pin 3: Pin 5: Telemeasures (on rear panel) Pin 1:
Block diagram 51
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Section 2 - Installation Contents: 2.1 Preliminary operations 2.2 Operating environment 2.3 First installation 2.
2.1 PRELIMINARY OPERATIONS No wiring is necessary because the device is already installed and correctly connected to the power supply and other parts of the transmitter. In case a new AC has to be installed, check all connections with the help of the diagrams and tables in this Section. Correct installation of the equipment is important for maximum performance and reliability. Before switching on and powering the transmitter, make sure that all connections are correctly made.
DRIVER1/2 Power Supply The transmitter can be wired so that the exciters are directly fed by the AC. The advantage of this configuration is the possibility to control the whole transmitter, Amplifier Modules and drivers, from a single point, that is the AC. Using the adequate male-female cord, connect the power supply of the driver to DRIVER1 POWER connector, for combined transmitters; connect the power supply of the drivers to DRIVER1 POWER and DRIVER2 POWER connector, for TV separated transmitter.
antenna and keep it constant over time, by increasing or decreasing the internal gain. In case of faults in the high-power amplifier stage, the AC stops the AGC in order to prevent any possible damage. AMPL RS485 In a high-power transmitter there are a number of Amplifier Modules (AM) which RF outputs are combined in order to provide the required total high power.
RS232 On the front panel of the AC there is a D-SUB9 female connector used to control the transmitter from a PC, using a standard RS232 serial connection. For more information about remote control option, contact the Sales Department of Elettronika S.r.l. or the local distributor. The pin-out of this connector is DCE-type and can be connected to a PC using a direct cable. This connector can also be used to update the firmware of the AC. This operation should only be performed by qualified technicians.
Switching on and off the transmitter by means of two switches on pins 1 and 14 of the telemeasures connector 58
Section 3 - Operations Contents: 3.1 Switching On the Amplifier Control 3.2 Operation 3.
3.1 SWITCHING ON THE AMPLIFIER CONTROL After having made sure of the wiring, the transmitter can be switched on by using the mains switch on the rear panel. The very first time the transmitter is switched on, set the POWER button on the front panel to 0, which means transmitter off. The display will show for a few seconds an introduction animation, displaying the kind of transmitter and the firmware version. During this stage, all LEDs light up and the buzzer sounds in order to check that it works.
exciters). If the alarm ends, the transmitter is automatically switched on again. Fan Control In case of fan alarm, that is when the FANS CONTROL shows that they are not working properly, the AC switches off the AMs and exciter(s) after a few seconds, but keeps the fans on, unlike the Interlock alarm. If the alarm was due to a temporary block or failure and the fans restarts working, the AC automatically switches on the AMs and exciter(s) again.
hard to read, the contrast can be adjusted by acting with a small screwdriver into the hole on the frontal panel marked with the symbol. The main screen is similar to the one in figure below. It may change depending on the transmitter, for instance depending on the number of AMs and unbalancing. Alarm Window The alarm window may contain three icons indicating anomalies in the operation of the transmitter. The first icon on the left represents the status of the Interlock.
Temperature and frequency window The temperature shown on the display of the AC is the internal temperature of the device and can be considered as a good estimation of the temperature inside the rack. The indication of the frequency is only present for some transmitters, and allows to keep into consideration the different gains of directional couplers with frequency. It can be set from the Settings menu.
(130 events). If the list is full and a new event occurs, the oldest event in the list is deleted to make free space to the new one. Each event has an associated number and contains date and time, concerned module and description of the event. If the event refers to an alarm condition, a bell icon is displayed on the right. The pages of the list can be scrolled using the arrow buttons. Press ESC to return to the main window. To delete all events in the log, press the ESC and RET buttons at the same time.
Buzzer The AC uses the buzzer in case of malfunctioning or situations in which the attention of the user is required. During tests or maintenance it may be useful to disable the buzzer using this menu. Generally speaking, it is better to reactivate it during the normal operation of the transmitter.. Log Mode The log is a very important feature as it allows the user to know the details of the alarms and events occurred to the transmitter, even if it is unattended.
Thresholds Each RF power monitored by the AC should be below a given maximum threshold. In case a value is beyond the threshold, the AC indicates an alarm condition. The values of the thresholds are displayed in the Thresholds menu. Clock/Date This menu is used to set the current date and time. Once the changes are confirmed by pressing the RET button, the AC synchronizes all of the AMs of the transmitter. Backlight The display is provided with a backlight.
Section 4 - Diagram Contents: - APG012C AMPLIFIER CONTROL Cable Diagram - APG012C AMPLIFIER CONTROL Component list - Modules description 67
Component list APG012C Elettronika Code Description Qty 02018 02035 02695 02699 02700 02740 02741 02843 02855 02856 02880 05504 05525 07524A 07925 07926 08500 C0814 CON0145 CON0153 DET0313 E0031 PAN0066 SCH0110BR0 SCH0152AR0 SCH0239AR0 SCH0241AR0 V0761 BNC CONNECTOR FOR RG174 CABLE BNC CONNECTOR FOR RG316 CABLE DB9 CONNECTOR FOR IU008059 CABLE 10 WIRE FEMALE CONNECTOR 16 WIRE FEMALE CONNECTOR FEMALE PAN COVER PAN 2 POLES SHIELDED SOCKET 26 WIRE FEMALE CONNECTOR DB25 FEMALE CONNECTOR 10A GREEN SOCKET M
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CONTROL AND DISPLAY BOARD SCH0239AR0 DESCRIPTION SCH0239A is the Main Board of the Amplifier Control. It could be considered the core of the equipment. This board is based on a powerful 16 bit microcontroller that runs an optimized ad-hoc firmware for the transmitter. The firmware can be simply upgraded by means of RS232 (see the paragraph below for more details).
DB9 male - DB9 female (pin-to-pin). Launch on the PC the EKAFlash application, select the serial port in use on the PC, choose the update file by pressing the “...” key and click on Download button. Eventually, turn off the AC from the main switch and then turn it on again. The upgrade of the firmware begins on the EKAFlash window. The figure below shows this window while a firmware is being updated.
SCH0239AR0 Top layer Component layout 73
SCH0239AR0 Bottom layer Component layout 74
SCH0239AR0 COMPONENT LIST Part Name/Number Description Qty. Comps.
Part Name/Number Description Qty. Comps.
ANALOG INPUT BOARD SCH0110BR0 DESCRIPTION SCH0110B is a simple board with 8 BNC connectors (only some of them can be mounted depending on the transmitter). It routes all the 8 analog input signals (usually for power monitoring) on a IDC connector for simple wiring with the display board. SCH0110BR0 Component layout SCH0110BR0 COMPONENT LIST Part Name/Number Description Qty. Comps. CC 1206 N. M. CC 1nF-S 01096 J BNC-90G-PCB 2034 J BNC-90G-PCB 2034 J FC-16P 02701-02700 R 0R0-S 00001 R 1206 N. M. N.
220VAC SWITCHING BOARD SCH0152AR0 DESCRIPTION The SCH0152A board is based on three relays, each for one power connector (DRIVER1 POWER, DRIVER2 POWER, FANS POWER). The board is directly connected to the mains power supply and controlled by the SCH0239A (Control Board). When the microcontroller on SCH0239A decides to switchon the DRIVER1, for example, it activates the regarding relay on SCH0152A, connecting the main power supply with the DRIVER1 POWER.
IN/OUT DIGITAL BOARD SCH0241AR0 DESCRIPTION Several connectors are present on SCH0241A: 2 D-SUB9F for the RS485 AMs bus, 1 D-SUB9F for RS485 dedicated to the remote control, 2 BNC for Interlock and Fans control, 2 dual-poles connectors for +24Vdc power supply output, 1 fuse-holder that accepts the fuse for +24Vdc power signal. As the other boards, SCH0241A is connected with display board. Also, it is directly connected to the output of the internal AC/DC power supply (+24Vdc).
S-60-24 SWITCHING POWER SUPPLY E0031 MAIN FEATURES - Universal AC input / Full range - Protections: Short circuit / Over load / Over voltage - Cooling by free air convection - 100% full load burn-in test - Fixed switching frequency at 50kHz MECHANICAL SPECIFICATION 152.5 ASSIGNMENT 1 AC/L 1 2 AC/N 2 3 FG 4 DC OUTPUT -V 5 DC OUTPUT +V 65 9.5 3.5 7 PIN N° 3 5 2- M3 3 .5 4.5 24 78 159 80 97 84.5 8.
TECHNICAL CHARACTERISTICS MODEL DC VOLTAGE S-60-15 S-60-24 15V 24V RATED CURRENT 4A 2.5A CURRENT RANGE 0 ~ 4A 0 ~ 2.5A RATED POWER 60W 60W RIPPLE & NOISE (max.) Note 2 150mVp-p 150mVp-p VOLTAGE ADJ. RANGE 13.5 ~ 16.5V 21.6 ~ 26.4V VOLTAGE TOLERANCE Note 3 ± 1.0% ± 1.0% OUTPUT LINE REGULATION ± 0.5% ± 0.5% LOAD REGULATION ± 0.5% ± 0.5% SETUP, RISE, HOLD TIME 300ms, 50ms, 80ms / 230VAC VOLTAGE RANGE 88 ~ 264VAC FREQUENCY RANGE 47 ~ 63Hz EFFICIENCY (Typ.
